Whew, this is an easy one. To sign in to Yahoo! Messenger:

Click the Windows "Start" button, select "Programs" and " Yahoo! Messenger."

Enter your Yahoo! ID and password.

If more than one person is going to be using Yahoo! Messenger on this system, uncheck the "Remember my ID & Password" option. The application will request a Yahoo! ID and password each time it is started.

Click Sign In.

If you don't have a Yahoo! ID, click the "Get Yahoo! ID" button to create a free Yahoo! account.

Please Note: Yahoo! takes your security seriously and takes reasonable steps to protect your information. To learn more about these security steps, please read the ]Security Information in the Yahoo! Privacy Policy. Also, please visit our Security Center for additional information on how to reduce your security risk when online.